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Who’s the boss? Base-leached hierarchical ZSM-5, beta and USY are studied in the conversion of α-pinene, which is a biomass side stream in the wood processing industry. An overall organic-free synthesis of hierarchical USY is described and the catalytic performance is closely examined.

Back to bases: The addition of increasing amounts of NaHCO3 soluble base improved significantly the catalytic activity of Pt/TiO2 in HMF oxidation to FDCA by accelerating the oxidation rate of the aldehyde group. Moreover, the promotion of the catalyst with bismuth yielded a PtBi/TiO2 catalytic system (with Na2CO3 as the weak base) with improved activity and stability with respect to the monometallic catalyst.

Just say no to fermentation: The first selective, chemical-catalytic approach to renewable 3-hydroxypropanoic acid (HPA) has been accomplished by gentle oxidation of biomass-derived levulinic acid with hydrogen peroxide and hydrogenolysis of the resulting hydroperoxide intermediate. HPA is a green building block of major potential for the production of renewable acrylate derivatives.

Shuttle takes off: Oxygen-shuttle metal–air batteries with a Ca-stabilized ZrO2 electrolyte are studied by using various metals as anode. A strong reducing environment in the anode chamber decreases the ohmic and polarization resistance of the anode with n-type conduction generated in the electrolyte. However, only mildly reducing metals can be used in rechargeable metal–air batteries as the transport number of the CSZ electrolyte must be unity during charge and discharge.

Search for new solar water splitting materials: The combinatorial synthesis and high-throughput screening of the FeWO system using more than 1000 different measurement areas located on three material libraries are presented. Correlations between increased photocurrent density and crystallinity, especially for the phases WO3 and W5O14 and less distinct but still apparent for the Fe2O6W phase, are revealed.